MagnesiuM Heavy Duty 7”
angle grinDer
97588
set up anD Operating instructiOns
®
Distributed exclusively by Harbor Freight tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
read this material before using this product.
Failure to do so can result in serious injury.
save tHis Manual.
©
®
Copyright 2008 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork
contained herein may be reproduced in any shape or form without the express written consent of Harbor
FreightTools. Diagramswithinthismanualmaynotbedrawnproportionally. Duetocontinuingimprovements,
actual product may differ slightly from the product described herein.
For technical questions or replacement parts, please call 1-800-444-3353.
REV 11h
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plugs with grounded power tools.
Unmodified plugs and matching out-
lets will reduce risk of electric shock.
Safety equipment such as dust mask,
non-skid safety shoes, hard hat, or
hearing protection used for appropri-
ate conditions will reduce personal
injuries.
b.avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
c.prevent unintentional starting.
ensure the switch is in the off-po-
sition before connecting to power
source and/or battery pack, pick-
ing up or carrying the tool. Carry-
ing power tools with your finger on
the switch or energizing power tools
that have the switch on invites acci-
dents.
c.Do not expose power tools to rain
or wet conditions. Water entering
a power tool will increase the risk of
electric shock.
d.Do not abuse the cord. never use
the cord for carrying, pulling or
unplugging the power tool. Keep
cord away from heat, oil, sharp
edges or moving parts. Damaged
or entangled cords increase the risk
of electric shock.
d.remove any adjusting key or
wrench before turning the power
tool on. A wrench or a key left at-
tached to a rotating part of the power
tool may result in personal injury.
e.Do not overreach. Keep proper
footing and balance at all times.
This enables better control of the
power tool in unexpected situations.
e.When operating a power tool out-
doors, use an extension cord suit-
able for outdoor use. Use of a cord
suitable for outdoor use reduces the
risk of electric shock.
f. Dress properly. Do not wear loose
clothing or jewelry. Keep your
hair, clothing and gloves away
from moving parts. Loose clothes,
jewelry or long hair can be caught in
moving parts.
f. if operating a power tool in a damp
location is unavoidable, use a
ground Fault circuit interrupter
(gFci) protected supply. Use of
a GFCI reduces the risk of electric
shock.
g.if devices are provided for the con-
nection of dust extraction and col-
lection facilities, ensure these are
connected and properly used. Use
of these devices can reduce dust-
related hazards.
3. personal safety
a.stay alert, watch what you are do-
ing and use common sense when
operating a power tool. Do not use
a power tool while you are tired
or under the influence of drugs,
alcohol or medication. A moment
of inattention while operating power
tools may result in serious personal
injury.
h.Only use safety equipment that
has been approved by an appropri-
ate standards agency. Unapproved
safety equipment may not provide
adequate protection. Eye protection
must be ANSI-approved and breath-
ing protection must be NIOSH-ap-
b.use personal protective equip-
ment. always wear eye protection.
SKU 97588
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proved for the specific hazards in the
work area.
g.use the power tool, accessories
and tool bits etc. in accordance
with these instructions, taking into
account the working conditions
and the work to be performed. Use
of the power tool for operations differ-
ent from those intended could result
in a hazardous situation.
4. power tool use and care
a.Do not force the power tool. use
the correct power tool for your ap-
plication. The correct power tool will
do the job better and safer at the rate
for which it was designed.
5. service
b.Do not use the power tool if the
switch does not turn it on and off.
Any power tool that cannot be con-
trolled with the switch is dangerous
and must be repaired.
a.Have your power tool serviced by
a qualified repair person using
only identical replacement parts.
This will ensure that the safety of the
power tool is maintained.
c.Disconnect the plug from the
power source and/or the battery
pack from the power tool before
making any adjustments, chang-
ing accessories, or storing power
tools. Such preventive safety mea-
sures reduce the risk of starting the
power tool accidentally.
grinding, sanding or Wire
Brushing Operation safety
Warnings
1. this power tool is intended to
function as a grinder, sander or
wire brushing tool. read all safety
warnings, instructions, illustra-
tions and specifications provided
with this power tool. Failure to fol-
low all instructions listed below may
result in electric shock, fire and/or
serious injury.
d.store idle power tools out of the
reach of children and do not allow
persons unfamiliar with the power
tool or these instructions to oper-
ate the power tool. Power tools are
dangerous in the hands of untrained
users.
2. Operations such as polishing or
cutting-off are not recommended
to be performed with this power
tool. Operations for which the power
tool was not designed may create a
hazard and cause personal injury.
e.Maintain power tools. check for
misalignment or binding of moving
parts, breakage of parts and any
other condition that may affect the
power tool’s operation. if dam-
aged, have the power tool repaired
before use. Many accidents are
caused by poorly maintained power
tools.
3. Do not use accessories which
are not specifically designed and
recommended by the tool manu-
facturer. Just because the accessory
can be attached to your power tool, it
does not assure safe operation.
f. Keep cutting tools sharp and
clean. Properly maintained cutting
tools with sharp cutting edges are
less likely to bind and are easier to
control.
4. the rated speed of the accessory
must be at least equal to the maxi-
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mum speed marked on the power
tool. Accessories running faster than
their RATED SPEED can break and
fly apart.
sive or work piece fragments. the
eye protection must be capable of
stopping flying debris generated
by various operations. The eye pro-
tection must be capable of stopping
flying debris generated by various
operations. The dust mask or respira-
tor must be capable of filtrating par-
ticles generated by your operation.
Prolonged exposure to high intensity
noise may cause hearing loss.
5. the outside diameter and the
thickness of your accessory must
be within the capacity rating of
your power tool. Incorrectly sized
accessories cannot be adequately
guarded or controlled.
6. The arbor size of wheels, flanges,
backing pads or any other acces-
sory must properly fit the spindle
of the power tool. Accessories with
arbor holes that do not match the
9. Keep bystanders a safe distance
away from work area. anyone
entering the work area must wear
personal protective equipment.
Fragments of work piece or of a
broken accessory may fly away and
cause injury beyond immediate area
of operation.
mounting hardware of the power tool
will run out of balance, vibrate exces-
sively and may cause loss of control.
7. Do not use a damaged accessory.
Before each use inspect the ac-
cessory such as abrasive wheels
for chips and cracks, backing pad
for cracks, tear or excess wear,
wire brush for loose or cracked
wires. if power tool or accessory
is dropped, inspect for damage or
install an undamaged accessory.
after inspecting and installing an
accessory, position yourself and
bystanders away from the plane of
the rotating accessory and run the
power tool at maximum no-load
speed for one minute. Damaged
accessories will normally break apart
during this test time.
10. Hold power tool by insulated grip-
ping surfaces only, when perform-
ing an operation where the cutting
accessory may contact hidden
wiring or its own cord. Cutting ac-
cessory contacting a ″live″ wire may
make exposed metal parts of the
power tool ″live″ and shock the op-
erator.
11. position the cord clear of the spin-
ning accessory. If you lose control,
the cord may be cut or snagged and
your hand or arm may be pulled into
the spinning accessory.
12. never lay the power tool down
until the accessory has come to a
complete stop. The spinning acces-
sory may grab the surface and pull
the power tool out of your control.
8. Wear personal protective equip-
ment. Depending on application,
use face shield, safety goggles
or safety glasses. as appropriate,
wear dust mask, hearing protec-
tors, gloves and workshop apron
capable of stopping small abra-
13. Do not run the power tool while
carrying it at your side. Accidental
contact with the spinning accessory
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could snag your clothing, pulling the
accessory into your body.
pacemakers should:
• Avoid operating alone.
• Do not use with power switch locked
on.
• Properly maintain and inspect to
avoid electrical shock.
• Any power cord must be properly
grounded. Ground Fault Circuit Inter-
rupter (GFCI) should also be imple-
mented – it prevents sustained elec-
trical shock.
14. regularly clean the power tool’s
air vents. The motor’s fan will draw
the dust inside the housing and ex-
cessive accumulation of powdered
metal may cause electrical hazards.
15. Do not operate the power tool near
flammable materials. Sparks could
ignite these materials.
23. Some dust created by power sand-
ing, sawing, grinding, drilling, and
other construction activities, contains
chemicals known [to the State of Cali-
fornia] to cause cancer, birth defects
or other reproductive harm. Some
examples of these chemicals are:
• Lead from lead-based paints
16. Do not use accessories that re-
quire liquid coolants. Using water
or other liquid coolants may result in
electrocution or shock.
17. Maintain labels and nameplates on
the tool. These carry important safety
information. If unreadable or miss-
ing, contact Harbor Freight Tools for a
replacement.
• Crystalline silica from bricks and ce-
ment or other masonry products
• Arsenic and chromium from chemi-
cally treated lumber
18. Avoid unintentional starting. Prepare
to begin work before turning on the
tool.
Your risk from these exposures var-
ies, depending on how often you do
this type of work. To reduce your
exposure to these chemicals: work in
a well ventilated area, and work with
approved safety equipment, such as
those dust masks that are specially
designed to filter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
19. Do not lay the tool down until it has
come to a complete stop. Moving
parts can grab the surface and pull
the tool out of your control.
20. Do not leave the tool unattended
when it is plugged into an electrical
outlet. Turn off the tool, and unplug it
from its electrical outlet before leav-
ing.
24. WARNING: Handling the cord on
this product will expose you to lead,
a chemical known to the State of
California to cause cancer, and birth
defects or other reproductive harm.
Wash hands after handling. (Califor-
nia Health & Safety Code § 25249.5,
et seq.)
21. This product is not a toy. Keep it out
of reach of children.
22. People with pacemakers should
consult their physician(s) before use.
Electromagnetic fields in close prox-
imity to heart pacemaker could cause
pacemaker interference or pacemak-
er failure. In addition, people with
25. The warnings, precautions, and in-
structions discussed in this instruction
SKU 97588
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manual cannot cover all possible con- 2. never place your hand near the
ditions and situations that may occur.
It must be understood by the operator
that common sense and caution are
factors which cannot be built into this
product, but must be supplied by the
operator.
rotating accessory. Accessory may
kickback over your hand.
3. Do not position your body in the
area where power tool will move
if kickback occurs. Kickback will
propel the tool in direction opposite to
the wheel’s movement at the point of
snagging.
Kickback and related Warnings
Kickback is a sudden reaction to a
pinched or snagged rotating wheel, back-
ing pad, brush or any other accessory.
Pinching or snagging causes rapid stall-
ing of the rotating accessory which in turn
causes the uncontrolled power tool to be
forced in the direction opposite of the ac-
cessory’s rotation at the point of the bind-
ing.
4. use special care when working
corners, sharp edges etc. avoid
bouncing and snagging the ac-
cessory. Corners, sharp edges or
bouncing have a tendency to snag
the rotating accessory and cause loss
of control or kickback.
5. Do not attach a saw chain wood-
carving blade or toothed saw
blade. Such blades create frequent
kickback and loss of control.
For example, if an abrasive wheel is
snagged or pinched by the workpiece, the
edge of the wheel that is entering into the
pinch point can dig into the surface of the
material causing the wheel to climb out
or kick out. The wheel may either jump
toward or away from the operator, depend-
ing on direction of the wheel’s movement
at the point of pinching. Abrasive wheels
may also break under these conditions.
Safety Warnings Specific for
grinding Operations
1. use only wheel types that are
recommended for your power tool
and the specific guard designed
for the selected wheel. Wheels for
which the power tool was not de-
signed cannot be adequately guarded
and are unsafe.
Kickback is the result of power tool
misuse and/or incorrect operating proce-
dures or conditions and can be avoided by
taking proper precautions as given below.
2. the guard must be securely at-
tached to the power tool and posi-
tioned for maximum safety, so the
least amount of wheel is exposed
towards the operator. The guard
helps to protect operator from broken
wheel fragments and accidental con-
tact with wheel.
1. Maintain a firm grip on the power
tool and position your body and
arm to allow you to resist kick-
back forces. always use auxiliary
handle, if provided, for maximum
control over kickback or torque
reaction during start-up. The opera-
tor can control torque reactions or
kickback forces, if proper precautions
are taken.
3. Wheels must be used only for
recommended applications. For
example: do not grind with the
SKU 97588
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side of cut-off wheel. Abrasive cut-
off wheels are intended for peripheral
grinding, side forces applied to these
wheels may cause them to shatter.
wheel or brush with the guard.
Wire wheel or brush may expand in
diameter due to work load and cen-
trifugal forces.
4. always use undamaged wheel
flanges that are of correct size and
shape for your selected wheel.
Proper wheel flanges support the
wheel thus reducing the possibility of
wheel breakage. Flanges for cut-off
wheels may be different from grinding
wheel flanges.
vibration safety
This tool vibrates during use. Re-
peated or long-term exposure to vibra-
tion may cause temporary or permanent
physical injury, particularly to the hands,
arms and shoulders. To reduce the risk of
vibration-related injury:
5. Do not use worn down wheels
from larger power tools. Wheel
intended for larger power tool is not
suitable for the higher speed of a
smaller tool and may burst.
1. Anyone using vibrating tools regu-
larly or for an extended period should
first be examined by a doctor and
then have regular medical check-
ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation
to the hand, past hand injuries, ner-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any medical or
physical symptoms related to vibra-
tion (such as tingling, numbness, and
white or blue fingers), seek medical
advice as soon as possible.
Safety Warnings Specific for
sanding Operations
1. Do not use excessively oversized
sanding disc paper. Follow manu-
facturer’s recommendations, when
selecting sanding paper. Larger
sanding paper extending beyond the
sanding pad presents a laceration
hazard and may cause snagging,
tearing of the disc or kickback.
2. Do not smoke during use. Nico-
tine reduces the blood supply to the
hands and fingers, increasing the risk
of vibration-related injury.
Safety Warnings Specific for Wire
Brushing Operations
1. Be aware that wire bristles are
thrown by the brush even dur-
ing ordinary operation. Do not
overstress the wires by applying
excessive load to the brush. The
wire bristles can easily penetrate light
clothing and/or skin.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice between dif-
ferent processes.
5. Include vibration-free periods each
day of work.
2. if the use of a guard is recom-
mended for wire brushing, do not
allow any interference of the wire
SKU 97588
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6. Grip tool as lightly as possible (while
still keeping safe control of it). Let
the tool do the work.
grounded tools: tools with three
prong plugs
7. To reduce vibration, maintain the tool
as explained in this manual. If any
abnormal vibration occurs, stop use
immediately.
save tHese
instructiOns.
grOunDing
1. Tools marked with “Grounding Re-
quired” have a three wire cord and
three prong grounding plug. The
plug must be connected to a properly
grounded outlet. If the tool should
electrically malfunction or break
down, grounding provides a low
resistance path to carry electricity
away from the user, reducing the risk
of electric shock. (see 3-prong plug
and Outlet.)
tO prevent
electric sHOcK
anD DeatH FrOM
incOrrect grOunDing
Wire cOnnectiOn:
Check with a qualified
electrician if you are in doubt
as to whether the outlet is
properly grounded. Do not
modify the power cord plug
provided with the tool. never 2. The grounding prong in the plug is
remove the grounding prong
from the plug. Do not use the
tool if the power cord or plug
is damaged. if damaged, have
it repaired by a service facility
before use. if the plug will not
fit the outlet, have a proper
outlet installed by a qualified
electrician.
connected through the green wire in-
side the cord to the grounding system
in the tool. The green wire in the cord
must be the only wire connected to
the tool’s grounding system and must
never be attached to an electrically
“live” terminal. (see 3-prong plug
and Outlet.)
3. The tool must be plugged into an
appropriate outlet, properly installed
and grounded in accordance with all
codes and ordinances. The plug and
outlet should look like those in the
preceding illustration. (see 3-prong
plug and Outlet.)
note: This is a double insulated tool. Infor-
mation on grounded tools is provided
for reference only.
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ample, a 14 gauge cord can carry a
higher current than a 16 gauge cord.
(see table a.)
Double insulated tools: tools
with two prong plugs
3. When using more than one exten-
sion cord to make up the total length,
make sure each cord contains at
least the minimum wire size required.
(see table a.)
4. If you are using one extension cord
for more than one tool, add the
nameplate amperes and use the sum
to determine the required minimum
cord size. (see table a.)
1. Tools marked “Double Insulated” do
not require grounding. They have
a special double insulation system
which satisfies OSHA requirements
and complies with the applicable
standards of Underwriters Labora-
tories, Inc., the Canadian Standard
Association, and the National Electri-
cal Code. (see Outlets for 2-prong
plug.)
5. If you are using an extension cord
outdoors, make sure it is marked with
the suffix “W-A” (“W” in Canada) to
indicate it is acceptable for outdoor
use.
6. Make sure the extension cord is prop-
erly wired and in good electrical con-
dition. Always replace a damaged
extension cord or have it repaired by
a qualified electrician before using it.
2. Double insulated tools may be used
in either of the 120 volt outlets shown
in the preceding illustration. (see
Outlets for 2-prong plug.)
7. Protect the extension cords from
sharp objects, excessive heat, and
damp or wet areas.
extension cords
1. Grounded tools require a three wire
extension cord. Double Insulated
tools can use either a two or three
wire extension cord.
2. As the distance from the supply outlet
increases, you must use a heavier
gauge extension cord. Using exten-
sion cords with inadequately sized
wire causes a serious drop in voltage,
resulting in loss of power and pos-
sible tool damage.
(see table a.) The smaller the
gauge number of the wire, the greater
the capacity of the cord. For ex-
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recOMMenDeD MiniMuM Wire
gauge FOr eXtensiOn cOrDs*
(120/240 vOlt)
eXtensiOn cOrD
naMeplate
lengtH
aMperes
(at full load)
0 – 2.0
2.1 – 3.4
18
18
18
18
18
14
12
18
18
18
16
14
12
10
18
18
16
14
12
10
-
18
16
14
12
10
-
16
14
12
12
-
3.5 – 5.0
5.1 – 7.0
7.1 – 12.0
12.1 – 16.0
16.1 – 20.0
-
-
-
* Based on limiting the line
voltage drop to five volts at
150% of the rated amperes.
taBle a
symbology
Double Insulated
Canadian Standards Association
Underwriters Laboratories, Inc.
Volts Alternating Current
Amperes
v~
a
No Load Revolutions per Minute
(RPM)
n xxxx/min.
0
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tO prevent
seriOus injury
speciFicatiOns
FrOM acciDental
Electrical Requirements 120 V~ / 60 Hz / 15 A
OperatiOn:
Motor No Load Speed
Wheel Diameter
Arbor Diameter
8000 RPM
7 inches
turn the power switch of the
tool to its “OFF” position and
unplug the tool from its
electrical outlet before
assembling or making any
adjustments to the tool.
7/8 inch
Spindle Thread
5/8 inch x 11 TPI
90sM
e194601
note: For additional information regarding
the parts listed in the following pages,
refer to the Assembly Diagram near
the end of this manual.
unpacKing
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown on the cover of this manual as soon
as possible.
assembly
installing the Wheel guard
1. The Wheel Guard (7) must be in-
stalled before installing a grinding
wheel or other disc.
list of contents
Description
Q’ty
2. Loosen the Wheel Guard Quick Re-
Angle Grinder
1
1
1
1
1
1
lease (6) by pulling the lever outward.
Grinding Wheel
3. Slide the collar of the Wheel Guard
(7) over the rim of the Front Cap (13).
Quick Release Wheel Guard
Auxiliary Handle
Pin Wrench
4. Rotate the position of the Wheel
Guard as needed for the planned
work.
Owner’s Manual
instructiOns FOr
putting intO use
5. Tighten the Wheel Guard Quick Re-
lease by pressing the lever back in
place. The clamping pressure of the
Quick Release may be adjusted us-
ing the Nut (4).
read the entire iMpOrtant
saFety inFOrMatiOn
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
6. Check the Wheel Guard to ensure it
is firmly in place. Adjust if necessary
before proceeding.
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installing the auxiliary Handle
tO prevent
Operating instructiOns
read the entire iMpOrtant
saFety inFOrMatiOn
section at the beginning of this
manual including all text under
subheadings therein before set
up or use of this product.
seriOus injury:
Do not operate this tool with
one hand only or without the
auxiliary Handle properly
installed.
7. The Auxiliary Handle may be installed
in one of three positions, on either
side or on top of the Gear Housing
(26). (See Photo.)
tool set up
tO prevent
seriOus injury
FrOM acciDental
OperatiOn:
8. Screw the threaded end of the Auxil-
iary Handle into the selected position.
Tighten securely before beginning
work.
turn the power switch of the
tool to its “OFF” position and
unplug the tool from its
electrical outlet before
performing any inspection,
maintenance, or cleaning
procedures.
Functions
Auxiliary Handle (25)
Alternative Mounting
Positions for Auxiliary
Handle
Spindle
Lock
installing a grinding Wheel
Button
(24)
1. Before installing a grinding wheel,
review the warnings on pages 5 - 7.
The Grinding Wheel MUST be:
• rated to at least 8000 RPM.
• no larger than 7” in diameter.
• fitted with a 7/8” round arbor hole.
• 3/8” thick or less.
Magnesium
Alloy Cover
• a type of grinding wheel suitable for
surface grinding, not edge grinding.
• dry and clean.
Carbon Brush Cap (45)
Wheel Guard (7)
• proven undamaged by inspec-
tion and by the ring-test explained
below.
Quick Release Adjusting Nut (4)
Wheel Guard Quick Release (6)
This hand-held tool may be used for
grinding, sanding, scaling, and other
related operations.
2. Press in and hold the Spindle Lock
Button (24) to prevent the Spindle (8)
from turning.
3. Remove the Outer Flange (1). Keep
the Inner Flange (3) in position on the
Spindle.
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4. Closely inspect the Grinding Wheel
before mounting. Perform a ring-test
on the wheel (unless wheel is smaller
than 4” or is an unusual shape) as
follows:
with. Blotters help prevent grind-
ing wheel damage and wheel slip-
page, causes of wheel failure.
6. Thread the Outer Flange Arbor Nut
onto the Spindle. Wrench tighten
only enough so that the wheel is se-
curely held on the spindle.
a. Suspend wheel using a pin or finger
through the arbor hole.
Warning: to prevent serious
injury, do not overtighten flange.
Overtightening can damage the
wheel, causing wheel failure.
45°
45°
v
e
r
t
i
c
a
l
Hang
Wheel
from
pin
installing a threaded accessory
tO prevent
injury:
tap
Wheel
Here
c
e
n
t
e
r
Wear heavy-duty work gloves
when handling wire wheels
and brushes. these
accessories are sharp and
can cause injury.
45°
45°
1. Before installing an accessory, review
the warnings on pages 5 - 7.
The accessory MUST be:
• rated to at least 8000 RPM.
• no larger than 7” in diameter.
• fitted with a threaded opening of
5/8” x 11 TPI.
b. Tap the flat side of the wheel with a
light non-metallic object, such as a
screwdriver handle, at a point 45°
from the vertical center line on each
side of the wheel and 1 – 2 inches
from the edge of the wheel (see Il-
lustration).
• undamaged.
c. Rotate the wheel 45 degrees and
repeat the test until the entire wheel
has been checked.
• a sanding disc and backing pad, a
sanding flap disc, a wire wheel or
a wire cup brush (accessories not
included).
d. An undamaged wheel will give a
clear tone. If cracked, there will be a
dead sound and not a clear ring.
2. Press in and hold the Spindle Lock
Button (24) to prevent the Spindle (8)
from turning.
5. Slip the grinding wheel onto the Spin-
dle with a paper gasket, or blotter,
first. The blotter should be centered
on the grinding wheel and the wheel
and blotter should rest flat against the
Inner Flange.
3. Remove the Outer Flange Arbor Nut
(1) and the Inner Flange (3) and keep
in a safe place.
4. Thread disc accessory firmly onto
the Spindle. Wrench tighten onto the
spindle.
Warning: to prevent serious
injury, blotters must be used for all
grinding wheels they are provided
SKU 97588
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Work piece and Work area set up
general Operating instructions
1. Designate a work area that is clean
and well-lit. The work area must not
allow access by children or pets to
prevent injury and distraction.
tO prevent
seriOus injury:
Grip the tool firmly in both
hands.
2. Route the power cord along a safe
route to reach the work area without
creating a tripping hazard or exposing
the power cord to possible damage.
The power cord must reach the work
area with enough extra length to al-
low free movement while working.
1. This tool has a lock-on Trigger
Switch. Push the switch, and then
push forward the tab to lock the
switch for continuous running.
2. Allow the tool to come up to full
speed before touching the work ma-
terial.
3. Secure loose work pieces using a
vise or clamps (not included) to pre-
vent movement while working.
3. Apply the wheel to the work mate-
rial, allowing the tool to operate at
full speed. If the tool bogs down, use
lighter pressure.
4. There must not be hazardous ob-
jects, such as utility lines or foreign
objects, nearby that will present a
hazard while working.
4. To create a smoother surface, keep
the tool moving over the work sur-
face.
5. You must use personal safety equip-
ment including, but not limited to,
5. Release the Trigger Switch to stop
the tool.
ANSI-approved eye and hearing pro-
tection, as well as heavy work gloves.
6. Allow the tool to come to a complete
stop before setting it down.
6. Before beginning work, provide for
sparks and debris that will fly off the
work surface.
7. To prevent accidents, turn off the tool
and disconnect its power supply after
use. Clean, then store the tool in-
doors out of children’s reach.
SKU 97588
For technical questions, please call 1-800-444-3353.
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3. aFter use, clean external surfaces
of the tool with clean cloth. Never use
solvents or harsh cleaners as they
may damage the housing. to pre-
vent electrical shock, do not allow
water or other liquids to enter the
motor vent holes in the gear Hous-
ing (26).
Maintenance anD
servicing
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
tO prevent
seriOus injury
FrOM acciDental
OperatiOn:
turn the power switch of the
tool to its “OFF” position and
unplug the tool from its
electrical outlet before
performing any inspection,
maintenance, or cleaning
procedures.
4. grinDing WHeel care:
Handling - Do not lean grinding
wheels against an object, or rest ob-
jects on grinding wheels. Do not drop
grinding wheels or roll them across
the floor.
storage - Store thick grinding wheels
on appropriate racks and store thin
grinding wheels flat on a dry surface.
Store in a relatively constant temper-
ature and do not expose to moisture
or freezing temperatures.
Warning: to prevent serious
injury from grinding wheel failure,
discard any wheels that have been
improperly handled or stored.
tO prevent seriOus
injury FrOM tOOl
Failure:
Do not use damaged
equipment. if abnormal noise
or vibration occurs, have the
problem corrected before
further use.
5. OtHer accessOry care:
Handling - Do not drop accessories.
Do not bend or flex accessories that
are not intended to bend.
cleaning, Maintenance, and
lubrication
storage - Store accessories in dry,
cool area.
1. BeFOre eacH use, inspect the
general condition of the tool. Check
for loose screws, misalignment or
binding of moving parts, cracked or
broken parts, damaged electrical wir-
ing, and any other condition that may
affect its safe operation.
6. carBOn BrusH Maintenance.
The carbon brushes may require
maintenance when the motor perfor-
mance of the tool decreases or stops
working completely. To maintain the
brushes:
a. Remove the Screws (40) and Brush
Caps (41 and 45) from the sides of
the motor housing.
2. Periodically blow dust and grit out
of the motor vents using dry com-
pressed air. Always wear safety
glasses when performing this mainte-
nance operation.
SKU 97588
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armature, and that the springs face
away from the motor. Also, make
sure the springs operate freely.
h. Reconnect the Carbon Brush Leads.
i. Replace the Brush Caps and
Screws. Do not overtighten.
note: New carbon brushes tend to spark
when first used until they wear and
conform to the motor’s armature.
7.
Warning! if the supply cord of
this power tool is damaged, it must
be replaced only by a qualified
service technician.
b. Disconnect the Carbon Brush Leads
as shown in the illustration above.
c. Use a small prying tool (not includ-
ed) to hold the Spring Clips to the
side while you remove the carbon
brushes. Keep track of which
orientation the old carbon brush-
es were in to prevent needless
wear if they will be reinstalled.
d. If either carbon brush is worn down
by more than 1/2, replace both car-
bon brushes.
e. To clean old carbon brushes before
reusing them, rub the contact areas
with a pencil eraser.
f. Hold the spring clips to the side and
reinsert the old carbon brushes in
the same orientation to reduce wear.
g. When installing the carbon brushes,
make sure the carbon portions of the
carbon brushes contact the motor
SKU 97588
For technical questions, please call 1-800-444-3353.
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troubleshooting
problem
possible causes
likely solutions
Tool will not start
1. No power at outlet.
1. Check power at outlet.
2. Cord not connected.
2. Check that cord is plugged in.
3. Carbon Brushes may be worn or
damaged.
3. Inspect Carbon Brushes and replace if
necessary.
Tool operates
slowly or
1. Carbon Brushes may be worn or
damaged.
1. Inspect Carbon Brushes and replace if
necessary.
erratically.
2. Excess pressure applied to
workpiece.
2. Decrease pressure, allow tool to do
the work.
Tool does not
grind, sand or
brush effectively.
1. Disc accessory may be loose on
Spindle. Check tightness of Outer
Flange Arbor Nut or threaded disc
accessory on Spindle.
1. Be sure disc accessory is of correct
dimension and Outer Flange Arbor Nut
is tight.
2. Disc accessory may be damaged, 2. Check condition and type of disc
worn or wrong type for the
material.
accessory. Use only proper type of
disc accessory in good condition.
Follow all safety precautions whenever diagnosing or servicing the
tool. Disconnect power supply before service.
please reaD tHe FOllOWing careFully
THE MANUfACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLy
DIAGRAM IN THIS MANUAL AS A REfERENCE TOOL ONLy. NEITHER THE MANUfACTURER OR
DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT
HE OR SHE IS QUALIfIED TO MAkE ANy REPAIRS TO THE PRODUCT, OR THAT HE OR SHE IS
QUALIfIED TO REPLACE ANy PARTS Of THE PRODUCT. IN fACT, THE MANUfACTURER AND/
OR DISTRIBUTOR ExPRESSLy STATES THAT ALL REPAIRS AND PARTS REPLACEMENTS SHOULD
BE UNDERTAkEN By CERTIfIED AND LICENSED TECHNICIANS, AND NOT By THE BUyER. THE
BUyER ASSUMES ALL RISk AND LIABILITy ARISING OUT Of HIS OR HER REPAIRS TO THE
ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT Of HIS OR HER
INSTALLATION Of REPLACEMENT PARTS THERETO.
SKU 97588
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parts list
parts list
part
Description
Qty.
part
Description
Qty.
1
Outer Flange Arbor Nut
1
28 Pinion
1
2
3
4
5
6
7
8
9
Grinding Wheel (not included)
Inner Flange
-
29 Bearing 6201
1
1
1
1
1
1
1
1
1
1
1
4
1
1
2
2
1
2
1
5
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
8
1
1
1
7
7
1
1
1
1
1
1
1
1
1
1
30 Bearing Retaining Plate
31 Rotor
Quick Release Adjusting Nut m8
Washer
32 Bearing 629
Wheel Guard Quick Release
Wheel Guard
33 Bearing Sleeve
34 Baffle Ring
Spindle
35 Self Tapping Screw m4.2 x 71
36 Stator
Woodruff Key
10 Phillips Pan Head Screw m5 x 16
11 Spring Washer m5
12 Flat Washer
37 Lug
38 Heat Shrinkable Tube
39 Magnesium Alloy Cover
40 Self Tapping Screw m4.2 x 14
41 Carbon Brush Cap (left)
42 Motor Housing
43 Carbon Brush
13 Front Cap
14 Bearing 6203
15 Bearing Retaining Plate
16 Spring Washer m4
17 Phillips Pan Head Screw m4 x 12
18 Bevel Gear
44 Carbon Brush Holder
45 Carbon Brush Cap (right)
46 Coil Spring
19 Open Circlip
20 Needle Gear
47 Nameplate
21 Open Circlip
48 Self Tapping Screw
49 Left Handle
22 Phillips Pan Head Screw m4.8 x 28
23 Spring
50 Power Cable & Plug
51 Cable Clamp
24 Spindle Lock Button
25 Auxiliary Handle
26 Gear Housing
52 Cable Sleeve
53 Right Handle
27 Lock Nut m8 (black)
54 Trigger Switch
SKU 97588
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asseMBly DiagraM
record product’s serial number Here:
note: If product has no serial number, record month and year of purchase instead.
note: Some parts are listed and shown for illustration purposes only, and are not avail-
able individually as replacement parts.
SKU 97588
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90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high
quality and durability standards, and warrants to the original purchaser that this product
is free from defects in materials and workmanship for the period of 90 days from the date
of purchase. This warranty does not apply to damage due directly or indirectly, to misuse,
abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity,
improper installation, normal wear and tear, or to lack of maintenance. We shall in no event
be liable for death, injuries to persons or property, or for incidental, contingent, special or
consequential damages arising from the use of our product. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation of
exclusion may not apply to you. This warranty is expressly in lieu of all other warranties,
express or implied, including the warranties of merchantability and fitness.
To take advantage of this warranty, the product or part must be returned to us with
transportation charges prepaid. Proof of purchase date and an explanation of the complaint
must accompany the merchandise. If our inspection verifies the defect, we will either
repair or replace the product at our election or we may elect to refund the purchase price
if we cannot readily and quickly provide you with a replacement. We will return repaired
products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning
the product.
This warranty gives you specific legal rights and you may also have other rights which
vary from state to state.
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
REV 11h
SKU 97588
For technical questions, please call 1-800-444-3353.
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